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Discussion Starter #1 (Edited)
Hi guys,

Been searching the forum for the past few days looking for an answer to my issue but I'm just more lost than before I started!

Basically, as quite a few people on here, I'm suffering the random dead battery disease.

I have an 07 - 1.8 EX petrol civic and in the past year iv had a dead battery 5 times.. today being one of these stuck in tesco car park of all places.
Long story short, it only happens when iv been sat in the car with the engine off but ignition in position 2 (listening to the radio while waiting for the mrs). I understand that this does drain the battery somewhat but I only had the engine off for 2 minutes max. Surely this cant completely drain the battery? It starts right up again with jumpstart.

Anyone else had this issue or have an idea what might be wrong? Ive checked for fault codes and everything is clear.

The obvious solution is to either sit with the engine running or sit in silence. But it would be nice to try fix it!

Edit: the dash, lights and other electrics seem to still work but the engine wont turn over. When I push the start button everything dims and dies. So the battery isnt fully dead. Im confused.

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Dead 5 times?
Is it still your first battery?

Sounds like time has come for a new one.

Make sure you never leave the car with wipers or lights set on "Auto" (if you've got those features).

Maybe you should have your MICU checked, too, since it is known to be causing a drained battery quite often.

If this is ok, then get yourself a new battery.
One of the best ones is a BOSCH S4 021.

Just like you, I also had similar issues with the OEM battery right from the very first day on,
but after replacing it by the BOSCH, everything became much better.

Now, the car would start even after not moving it for three weeks and I can listen to the stereo
for at least half an hour with no problems at all.
Probably, I could listen even longer, but I haven't tried yet.
 

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I have always had these on auto on my vehicle since I bought it 7 weeks ago? Surely these are fused to ignition on?
 

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There's still some current running through the car, even with the ignition off.

If you had a look at your manual, you could find it mentioned there, too.
There, it says, you shouldn't leave Auto turned on all the time.

There are many posts about it in this forum, too.
 

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Discussion Starter #7
Dead 5 times?
Is it still your first battery?

Sounds like time has come for a new one.

Make sure you never leave the car with wipers or lights set on "Auto" (if you've got those features).

Maybe you should have your MICU checked, too, since it is known to be causing a drained battery quite often.
Yep it still has the first battery in. Think this could be the issue? It just weird that its fine if I leave my car undriven for weeks but as soon as I leave key in ingnition position 2 for a minute or so it drains.

I dont have any auto lights or wipers on my model so at least I can rule that out.





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Your Civ was made in 2007?
So, you've got an almost 7 years old battery.
I think, you should definitely have a new one.
I bet, you won't regret it. :)

But even with the best battery you can ever find, you shouldn't leave your Civ undriven for more than three weeks.
That's even more true for the cold season we have right now.

The Civ, just like many cars nowadays, is sort of a "mobile computer" with tons of electronics in it, and all of these features want to have enough power in order to work, which is hard to provide for a battery, a device which, unlike the rest of a car, has been technically almost the same for the last few decades, actually.

Besides of this, the available space in the engine bay is very limited in the Civ. So, depending on your model, it's quite difficult to fit another battery with a higher capacity.

Some of the users here on Civinfo seem to have managed to fit the battery of the diesel model by using another battery holder.
As far as I remember, this would give you 71Ah instead of the 45Ah of your petrol model.
Don't know whether or not this might be an option for you as well.


EDIT:
Oh, and let me this:

Just in case you want to try to replace your battery by yourself:

Never ever leave your key in the ignition lock during this procedure.
Otherwise you will ruin your immobilizer.
 
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